Parc du Cinquantenaire (French for "Park of the Fiftieth Anniversary") or Jubelpark (Dutch for "Jubilee Park") is a large public, urban park (30 hectares) in the easternmost part of the European Quarter in Brussels, Belgium.
Most buildings of the U-shaped complex which dominate the park were commissioned by the Belgian government under the patrondom of King Leopold II for the 1880 National Exhibition commemorating the fiftieth anniversary of Belgian independence, and successive exhibitions which place in the same area, replacing previous constructions . The present centrepiece triumphal arch was erected in 1905 replacing a previous temporary version of the arcade by Gédéon Bordiau. The structures were built in iron, glass and stone, symbolising the economic and industrial performance of Belgium. The surrounding 30 hectare park esplanade was full of picturesque gardens, ponds and waterfalls. It housed several trade fairs, exhibitions and festivals at the beginning of the century. This settled however in 1930 when it was decided that Cinquantenaire would become a leisure park.
The Royal Military Museum has been the sole tenant of the northern half of the complex since 1880. The southern half is currently occupied by the Cinquantenaire Art Museum and the AutoWorld Museum. The Temple of Human Passions, a remainder from 1886, and the Great Mosque of Brussels from 1978 are located in the north-western corner of the park.
Line 1 of the Brussels Metro and the Belliard Tunnel from Rue de la Loi/Wetstraat pass underneath the park, the latter partly in an open section in front of the Arch. The nearest metro stations are Schuman to the west of the park, and Mérode immediately to the east.
Today the various buildings of the Cinquantenaire host three museums (military museum, art museum, and vintage car museum AutoWorld) and one mosque. The surrounding park esplanade is used for several purposes in the summer, such as military parades and drive-in movies. It is also the starting point for the 20 km of Brussels, an annual run with 30,000 participants.
Inside of Cinquantenaire you can also find: Royal Museum of the Armed Forces and of Military History , Temple of Human Passions .